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Pinhead Bubble Shackle & Q/R Wheel Lock Set
Worlds top rated lock: Triple casing, Better shackle shape to resist jacks and crow-bars, Hardened steel and double bolted shackle, Hidden key entry. Uses the same coded key as our quick-release wheel locks.
Children's bikes are generally measured by wheel size, rather than by frame size. Remember children do grow very quickly and you need to take this into consideration when buying a kids bike, However, if you buy a bike that is simply too big for your child, you will compromise your child's safety, and ultimately discourage your child from cycling.
Age of Child
Which Size Bike Do I Require?
Adults bikes and those for 10/11 years and over, are generally measured by frame size. This is normally the measurement between the centre of the bottom bracket to the top of the seat tube.